33040425 has 48 divisors (see below), whose sum is σ = 61692480. Its totient is φ = 15456000.

The previous prime is 33040421. The next prime is 33040429. The reversal of 33040425 is 52404033.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33040421) and next prime (33040429).

It is not a de Polignac number, because 33040425 - 2² = 33040421 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33040421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23235 + ... + 24615.

It is an arithmetic number, because the mean of its divisors is an integer number (1285260).

Almost surely, 2^33040425 is an apocalyptic number.

It is an amenable number.

33040425 is a deficient number, since it is larger than the sum of its proper divisors (28652055).

33040425 is a wasteful number, since it uses less digits than its factorization.

33040425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1429 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 33040425 is about 5748.0801142642. The cubic root of 33040425 is about 320.8843538732.

Adding to 33040425 its reverse (52404033), we get a palindrome (85444458).

It can be divided in two parts, 330 and 40425, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 33040425 in words is "thirty-three million, forty thousand, four hundred twenty-five".